GB2432262A - Antenna device and mobile wireless apparatus using the same - Google Patents

Antenna device and mobile wireless apparatus using the same

Info

Publication number
GB2432262A
GB2432262A GB0617103A GB0617103A GB2432262A GB 2432262 A GB2432262 A GB 2432262A GB 0617103 A GB0617103 A GB 0617103A GB 0617103 A GB0617103 A GB 0617103A GB 2432262 A GB2432262 A GB 2432262A
Authority
GB
United Kingdom
Prior art keywords
shorter
antenna
length
antenna elements
antenna device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB0617103A
Other versions
GB2432262B (en
GB0617103D0 (en
Inventor
Motoyuki Okayama
Naoki Yuda
Yoshitaka Nagatomi
Hiroaki Ozeki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB0617103D0 publication Critical patent/GB0617103D0/en
Publication of GB2432262A publication Critical patent/GB2432262A/en
Application granted granted Critical
Publication of GB2432262B publication Critical patent/GB2432262B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/3833—Hand-held transceivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/401—Circuits for selecting or indicating operating mode

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

An antenna device includes a substantially rectangular board having a shorter-side length "a", and further includes first and second antenna elements and a switch circuit. The switch circuit selectively causes the first and second antenna elements to serve as a balanced antenna or causes the first and second antenna elements to serve as an unbalanced antenna and as a passive element, respectively. The antenna elements exhibit a wavelength " g 1" for a basically established frequency and a wavelength " g 2" for the highest frequency in a frequency band to be used. The antenna elements have an electrical length " r " that is equal to g 1/4. The first antenna element has a physical length "L1" that is shorter than the electrical length " r ". The second antenna element has a physical length "L2", and a sum of the physical lengths "L1" and "L2" is shorter than the shorter-side length "a". A half of the shorter-side length "a" is shorter than g 2/4.
GB0617103A 2004-09-10 2005-08-24 Antenna device and mobile radio apparatus using the same Expired - Fee Related GB2432262B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004263592A JP2006080953A (en) 2004-09-10 2004-09-10 Antenna device and mobile wireless equipment using the same
PCT/JP2005/015313 WO2006027952A1 (en) 2004-09-10 2005-08-24 Antenna device and mobile wireless apparatus using the same

Publications (3)

Publication Number Publication Date
GB0617103D0 GB0617103D0 (en) 2006-10-11
GB2432262A true GB2432262A (en) 2007-05-16
GB2432262B GB2432262B (en) 2008-07-30

Family

ID=36036240

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0617103A Expired - Fee Related GB2432262B (en) 2004-09-10 2005-08-24 Antenna device and mobile radio apparatus using the same

Country Status (7)

Country Link
US (1) US20080252534A1 (en)
JP (1) JP2006080953A (en)
KR (1) KR100867034B1 (en)
CN (1) CN1898834A (en)
DE (1) DE112005000105T5 (en)
GB (1) GB2432262B (en)
WO (1) WO2006027952A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007037615A1 (en) * 2007-08-09 2009-02-12 Continental Automotive Gmbh Antenna diagram switching to improve the radio connection properties
US8344959B2 (en) * 2009-04-30 2013-01-01 Nokia Corporation Multiprotocol antenna for wireless systems
US20100279734A1 (en) * 2009-04-30 2010-11-04 Nokia Corporation Multiprotocol Antenna For Wireless Systems
JP5413103B2 (en) * 2009-09-30 2014-02-12 ミツミ電機株式会社 Antenna device
US8610638B2 (en) 2011-01-17 2013-12-17 Nokia Corporation FM transmission using a RFID/NFC coil antenna
US20130119992A1 (en) * 2011-11-14 2013-05-16 The Charles Machine Works, Inc. Automatic Locator Antenna Tuning System
KR20140115231A (en) * 2013-03-20 2014-09-30 삼성전자주식회사 Antenna, user terminal apparatus, and method of controlling antenna
US10107931B2 (en) 2014-06-23 2018-10-23 The Charles Machine Works, Inc. Noise measurement in a locating receiver
CN105655685B (en) * 2015-12-25 2018-11-06 宇龙计算机通信科技(深圳)有限公司 A kind of mobile terminal and antenna system based on no breakpoint metal center
US9947993B2 (en) * 2016-08-12 2018-04-17 Microsoft Technology Licensing, Llc Antenna stack
CN110649368B (en) * 2019-09-29 2021-09-28 捷开通讯(深圳)有限公司 Antenna assembly and electronic equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6064505A (en) * 1983-09-19 1985-04-13 Matsushita Electric Ind Co Ltd On-vehicle antenna device
JP2001358514A (en) * 2000-06-14 2001-12-26 Sony Corp Radio terminal device
JP2002043826A (en) * 2000-07-19 2002-02-08 Matsushita Electric Ind Co Ltd Antenna arrangement
JP2004023546A (en) * 2002-06-18 2004-01-22 Matsushita Electric Ind Co Ltd Antenna system
JP2004072605A (en) * 2002-08-08 2004-03-04 Sony Ericsson Mobilecommunications Japan Inc Portable radio communication terminal
JP2004140815A (en) * 2002-09-26 2004-05-13 Matsushita Electric Ind Co Ltd Antenna for radio terminal device and radio terminal device
JP2004254098A (en) * 2003-02-20 2004-09-09 Matsushita Electric Ind Co Ltd Fold-up portable radio apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001053518A (en) * 1999-08-06 2001-02-23 Sony Corp Antenna system and portable radio device
JP2004187269A (en) * 2002-11-20 2004-07-02 Sanyo Electric Co Ltd Portable device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6064505A (en) * 1983-09-19 1985-04-13 Matsushita Electric Ind Co Ltd On-vehicle antenna device
JP2001358514A (en) * 2000-06-14 2001-12-26 Sony Corp Radio terminal device
JP2002043826A (en) * 2000-07-19 2002-02-08 Matsushita Electric Ind Co Ltd Antenna arrangement
JP2004023546A (en) * 2002-06-18 2004-01-22 Matsushita Electric Ind Co Ltd Antenna system
JP2004072605A (en) * 2002-08-08 2004-03-04 Sony Ericsson Mobilecommunications Japan Inc Portable radio communication terminal
JP2004140815A (en) * 2002-09-26 2004-05-13 Matsushita Electric Ind Co Ltd Antenna for radio terminal device and radio terminal device
JP2004254098A (en) * 2003-02-20 2004-09-09 Matsushita Electric Ind Co Ltd Fold-up portable radio apparatus

Also Published As

Publication number Publication date
KR20060130669A (en) 2006-12-19
GB2432262B (en) 2008-07-30
KR100867034B1 (en) 2008-11-04
WO2006027952A1 (en) 2006-03-16
DE112005000105T5 (en) 2007-04-12
JP2006080953A (en) 2006-03-23
CN1898834A (en) 2007-01-17
US20080252534A1 (en) 2008-10-16
GB0617103D0 (en) 2006-10-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090824